At a Glance
The Inventions at Stake
Edwin Land's breakthrough: a single sheet containing the negative, the positive, and all the processing chemistry, sealed together so a finished photograph develops in daylight after it leaves the camera — no darkroom, no peeling, no waste. Kodak's PR-10 instant film used the same integral, develop-in-the-light structure.
A rupturable pod of viscous developing reagent built into each frame. As the picture is ejected, the camera's rollers burst the pod and spread the chemistry in a precise, even layer between the film's layers. The composition of that reagent and the mechanics of spreading it were central Land claims.
Specialized layers that protect the still-developing image from light and then turn clear on a precise schedule, so the photograph can be watched as it appears without fogging. This is what made it possible to hold a developing print in your hand in full daylight.
The coordinated system — film cassette, drive motor, and rollers — that advances, ejects, and processes one frame at the press of a button. Kodak built a competing camera that performed the same sequence of operations to deliver an integral print.
Polaroid asserted roughly a dozen of Edwin Land's instant-photography patents. By the 1985 liability ruling, the court found Kodak had infringed seven of them — enough to support a market-wide injunction.
The Timeline
1948
Land invents instant photography
Polaroid founder Edwin Land demonstrates the first instant camera. Over the next three decades Polaroid builds a dense portfolio of patents around self-developing film — culminating in the 1972 SX-70, the first fully integral, develop-in-daylight system.
April 1976
Kodak enters — Polaroid sues within days
Eastman Kodak launches its own instant cameras and PR-10 film, breaking Polaroid's monopoly on the market it created. Polaroid immediately sues in the US District Court for the District of Massachusetts, asserting a dozen of Land's instant-photography patents.
1985
Liability ruling: Kodak infringed
After years of litigation, Judge Rya Zobel finds that Kodak infringed seven valid Polaroid patents covering the integral film and the camera systems. The decision sets up the remedy phase — and Kodak's instant-photography business is suddenly built on infringing technology.
January 1986
Injunction forces Kodak out of the market
The court enjoins Kodak from making or selling instant cameras and film. Kodak shuts down its instant-photography division, closes a roughly $1.5 billion plant, and lays off hundreds of workers. It must also run a buyback program for the ~16 million instant cameras already sold to consumers.
October 1990
Damages: $909 million — a record
Judge Zobel awards Polaroid approximately $909.4 million — at the time the largest patent-infringement award in US history. Polaroid had sought as much as $12 billion, so the number disappointed the company even as it set the record.
1991
The total bill comes due
Counting the damages, the shuttered factory, the consumer buyback, and a decade and a half of legal fees, Kodak's entry into instant photography is estimated to have cost it on the order of $3 billion — for a business it was forced to abandon entirely.
The Outcome
Kodak didn't just lose money. It lost the entire business.
The $909 million verdict made headlines, but the injunction was the real punishment. Kodak was ordered to stop selling instant cameras and film, shut down a brand-new factory, and lay off the division that built them. Because the cameras were useless without Kodak film, it also had to compensate the roughly 16 million customers who had already bought them — a buyback that became a logistical and reputational ordeal.
All told, Kodak's decade-and-a-half excursion into instant photography is estimated to have cost it around $3 billion. Polaroid, for its part, won the record but never fully converted the victory into lasting dominance; the instant-film market itself shrank as one-hour labs and, later, digital cameras arrived. The case is a reminder that winning the patent war does not guarantee winning the market.
What It Changed
Proved an injunction can delete a whole product line
Most patent cases end in a license and a royalty. Polaroid v. Kodak ended with a court ordering a Fortune 50 company to stop selling a product category outright — and to buy back the units already in customers' hands. It remains the canonical example of how a patent injunction, not just damages, is the remedy that can be truly existential for an infringer.
Set the modern bar for 'willful' risk-taking
Kodak had internal awareness of Polaroid's patents and chose to enter anyway, betting it could design around them. The scale of the loss — billions, plus the business itself — became the cautionary tale taught in every corporate IP-clearance and freedom-to-operate review since: clear the patents before you build the factory, not after.
Showed the limits of a damages number
Polaroid 'won' $909 million yet had asked for roughly $12 billion, and the gap exposed how hard it is to value a patent in dollars — lost profits, reasonable royalties, and price-erosion theories can swing an award by an order of magnitude. The case is still cited in fights over how patent damages should be calculated.
From PatentBrief
What does patent infringement actually mean? →
Polaroid v. Kodak is the textbook injunction case. Read our plain-English explainer on infringement, the all-elements rule, and the remedies a court can order.